[android-common:android12-kiwi-5.10 272/272] include/linux/compiler_types.h:309:45: error: call to '__compiletime_assert_402' declared with attribute error: clamp() low limit source_min greater than high limit source_max

Hi David,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android12-kiwi-5.10
head:   9c40f45d2c22f05e45bc48b1d7be869adf7e473a
commit: 530278140b21c18bf53392ce59ee2f46b094286b [272/272] minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp()
config: i386-buildonly-randconfig-001-20260813 (https://download.01.org/0day-ci/archive/20260813/[email protected]/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260813/[email protected]/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   drivers/gpu/drm/i915/display/intel_panel.c: In function 'scale':
>> include/linux/compiler_types.h:309:45: error: call to '__compiletime_assert_402' declared with attribute error: clamp() low limit source_min greater than high limit source_max
     309 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:290:25: note: in definition of macro '__compiletime_assert'
     290 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:309:9: note: in expansion of macro '_compiletime_assert'
     309 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/minmax.h:109:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     109 |         BUILD_BUG_ON_MSG(statically_true(ulo > uhi),                            \
         |         ^~~~~~~~~~~~~~~~
   include/linux/minmax.h:116:9: note: in expansion of macro '__clamp_once'
     116 |         __clamp_once(val, lo, hi, __UNIQUE_ID(v_), __UNIQUE_ID(l_), __UNIQUE_ID(h_))
         |         ^~~~~~~~~~~~
   include/linux/minmax.h:192:28: note: in expansion of macro '__careful_clamp'
     192 | #define clamp(val, lo, hi) __careful_clamp(val, lo, hi)
         |                            ^~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/display/intel_panel.c:479:22: note: in expansion of macro 'clamp'
     479 |         source_val = clamp(source_val, source_min, source_max);
         |                      ^~~~~


vim +/__compiletime_assert_402 +309 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  295  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  296  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  297  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  298  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  299  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  300   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  301   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  302   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  303   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  304   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  305   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  306   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  307   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  308  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @309  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  310  

:::::: The code at line 309 was first introduced by commit
:::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h

:::::: TO: Will Deacon <[email protected]>
:::::: CC: Will Deacon <[email protected]>

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